It sounds like your fear is waste, CL. Not that you want to hold on to the straw for emotional reasons, but that you don't want to see it thrown away. Same with the food. I really, really could not have had you see my dumpster last week. DH and I kept saying over and over... "This is a shame" as we threw away a ton of perfectly good things.
As for my documents, I still have tax records going back to 1976. I still have cancelled checks going back to that same period of time.. I was able to scan and send a picture of the check I wrote to my former HS friend, who chaired our first reunion, as a joke when he became chairman of our 50th reunion.
I even saved past due notices of bills from when we were in the crapper throughout most of the 80s and part of the 90s. Talk about holding on to bad energy!! I still have them in the basement, even after throwing away lamps and good dishes. I have the original mortgage papers from the cottage my great-uncle and aunt bought in 1910. I have my uncle's copies of Boys Life to which he was a contributing writer--and keep in mind that I had no relationship with my uncle--first of all he wasn't a blood relative--he was married to my aunt, and second he died when I was 3. I have every letter from every friend and relative. I have a little collection box for memorabilia I get, like postcards from my sweet DIL who is really into sending postcards, or scribblings from my grandkids and I add those to the pile.
Yesterday I finally threw out my stepfather's navy yearbook. He has no progeny to send it to. But I felt very bad--as if I were throwing out a piece of his soul, since he has no one left to remember his life.
No wonder one of my hobbies is Ancestry.com
I have my weekly pay stubs for every job I ever had going back to the job I got at NBC in 1973.
Oh, and then there's the box of diaries I've kept since starting them in October 1964 (still writing, but I've gone digital on that.)
In answer to your question, I'm probably down to 8 boxes of documents and 6 boxes of photo albums--but half of the photo albums are my MILs, and I don't feel comfortable throwing those away either. DH was throwing away his memorabilia, including master tape versions of TV shows he produced. I ran out to the garbage and rescued a couple. He caught me and yelled at me saying that the equipment they run on is obsolete, but that didn't stop me from saving them.
So while that hoard isn't impeding my life yet (it will if my son makes me remove them from "his" basement--because I have NO room for them in Grand Isle), I still consider it to be irrational behavior on my part.